U.S. patent application number 11/579774 was filed with the patent office on 2007-09-27 for spool, brake and electric motor.
Invention is credited to Laurent Criqui, Gerhard Florchinger, Pascal Heinrich, Jean-Pierre Lambling, Gerd Schuler.
Application Number | 20070222312 11/579774 |
Document ID | / |
Family ID | 34625853 |
Filed Date | 2007-09-27 |
United States Patent
Application |
20070222312 |
Kind Code |
A1 |
Heinrich; Pascal ; et
al. |
September 27, 2007 |
Spool, Brake and Electric Motor
Abstract
A spool includes at least one bobbin and one winding wire, e.g.,
a winding wire lacquered for electrical insulation, the bobbin
including at least one channel, e.g., one arranged as a pocket, at
least one sleeve being electrically connected to the winding wire,
the sleeve being electrically connected to an electrical line,
e.g., a stranded conductor of a cable, the sleeve including
deformable regions, for producing the electrical connections, a
respectively deformable region being deformable such that a
force-locking connection is provided and welding is able to be
carried out.
Inventors: |
Heinrich; Pascal;
(Rountzenheim, FR) ; Florchinger; Gerhard;
(Harthausen, DE) ; Criqui; Laurent;
(Staatsangehorigkeit, FR) ; Lambling; Jean-Pierre;
(Staatsangehorigkeit, FR) ; Schuler; Gerd;
(Staatsangehorigkeit, DE) |
Correspondence
Address: |
KENYON & KENYON LLP
ONE BROADWAY
NEW YORK
NY
10004
US
|
Family ID: |
34625853 |
Appl. No.: |
11/579774 |
Filed: |
April 4, 2005 |
PCT Filed: |
April 4, 2005 |
PCT NO: |
PCT/EP05/03515 |
371 Date: |
November 6, 2006 |
Current U.S.
Class: |
310/77 ;
192/84.1; 242/118 |
Current CPC
Class: |
H01R 4/187 20130101;
H01R 13/41 20130101; H01F 5/02 20130101; H01F 5/04 20130101 |
Class at
Publication: |
310/077 ;
192/084.1; 242/118 |
International
Class: |
B65H 54/02 20060101
B65H054/02; F16D 63/00 20060101 F16D063/00; H02K 7/10 20060101
H02K007/10 |
Foreign Application Data
Date |
Code |
Application Number |
May 4, 2004 |
EP |
10 2004 022 254.1 |
Claims
1-17. (canceled)
18. A spool, comprising: at least one bobbin; a winding wire; and
at least one sleeve electrically connected to the winding wire, the
sleeve electrically connected to at least one of (a) an electrical
line and (b) a stranded conductor of a cable, the sleeve including
at least one deformable region, the deformable region deformable to
provide a force-locking connection and weldability for producing
the electrical connections, the sleeve including at least one first
support region arranged for at least one of (a) support and (b)
guidance for the winding wire, the sleeve including at least one
second region, arranged as a tab, deformable for force-locking
connection to the winding wire and providable for producing a
welded joint to the winding wire, the sleeve including at least one
third region for a welded joint to the stranded conductor of the
cable.
19. The spool according to claim 18, wherein the third region
includes a wall part region.
20. A spool, comprising: at least one bobbin including at least one
channel; a winding wire; at least one sleeve is electrically
connected to the winding wire, the sleeve electrically connected to
an electrical line, the sleeve including at least one deformable
region, to produce the electrical connection, a respectively
deformable region is deformable to provide a force-locking
connection and weldability.
21. The spool according to claim 20, wherein the winding wire is
lacquered for electrical insulation.
22. The spool according to claim 20, wherein the channel is
arranged as a pocket.
23. The spool according to claim 20, wherein the electrical line
includes a stranded conductor of a cable.
24. The spool according to claim 20, wherein the sleeve includes a
metallic punched bent component.
25. The spool according to claim 23, wherein the sleeve is arranged
to provide an electrical connection between the winding wire and
the at least one of (a) the electrical line and (b) the stranded
conductor.
26. The spool according to claim 20, wherein the sleeve is
fastenable in the bobbin by at least one of (a) force-locking and
(b) form-locking.
27. The spool according to claim 20, wherein the sleeve includes at
least one barb.
28. The spool according to claim 20, wherein the sleeve includes at
least one barb adapted to hook into the channel.
29. The spool according to claim 20, wherein the sleeve includes at
least one first region provided to at least one of (a) support and
(b) guide the winding wire.
30. The spool according to claim 29, wherein the first region
includes a tab.
31. The spool according to claim 29, wherein the sleeve includes at
least one second region deformable for a force-locking connection
to the winding wire and is adapted to provide a welded joint to the
winding wire.
32. The spool according to claim 31, wherein the second region
includes a tab.
33. The spool according to claim 31, wherein the sleeve includes at
least one third region deformable for a force-locking connection to
the stranded connector and is adapted to provide a welded joint to
the stranded connector.
34. The spool according to claim 33, wherein the third region
includes a tab.
35. The spool according to claim 33, wherein the sleeve includes at
least one fourth region deformable for a force-locking connection
to a cable and is adapted to provide a welded joint to the stranded
connector.
36. The spool according to claim 35, wherein the fourth region
includes a tab.
37. The spool according to claim 35, wherein the fourth region is
deformable for a force-locking connection to insulation of the
cable.
38. The spool according to claim 20, wherein lacquering of the
winding wire is removable when producing a welded joint at least in
a vicinity of an electrical contact area due to heating that occurs
during production of the welded joint.
39. The spool according to claim 35, wherein the regions are
connected at a wall part.
40. The spool according to claim 20, wherein the spool includes a
center tap.
41. The spool according to claim 20, wherein the spool includes an
encapsulating material.
42. The spool according to claim 20, wherein the spool includes an
encapsulating material in an area of at least one of (a) the
channel and (b) the winding wire.
43. The spool according to claim 20, wherein the bobbin includes a
holding device for at least one of (a) the winding wire and (b) a
cable.
44. A brake, comprising: a brake coil in an electromagnet, the
brake coil including spool including: at least one bobbin; a
winding wire; and at least one sleeve electrically connected to the
winding wire, the sleeve electrically connected to at least one of
(a) an electrical line and (b) a stranded conductor of a cable, the
sleeve including at least one deformable region, the deformable
region deformable to provide a force-locking connection and
weldability for producing the electrical connections, the sleeve
including at least one first support region arranged for at least
one of (a) support and (b) guidance for the winding wire, the
sleeve including at least one second region, arranged as a tab,
deformable for force-locking connection to the winding wire and
providable for producing a welded joint to the winding wire, the
sleeve including at least one third region for a welded joint to
the stranded conductor of the cable.
45. A brake, comprising: a brake coil in an electromagnet, the
brake coil including a spool including: at least one bobbin
including at least one channel; a winding wire; at least one sleeve
is electrically connected to the winding wire, the sleeve
electrically connected to an electrical line, the sleeve including
at least one deformable region, to produce the electrical
connection, a respectively deformable region is deformable to
provide a force-locking connection and weldability.
46. An electric motor, comprising: a brake including a brake coil
in an electromagnet, the brake coil including a spool including: at
least one bobbin; a winding wire; and at least one sleeve
electrically connected to the winding wire, the sleeve electrically
connected to at least one of (a) an electrical line and (b) a
stranded conductor of a cable, the sleeve including at least one
deformable region, the deformable region deformable to provide a
force-locking connection and weldability for producing the
electrical connections, the sleeve including at least one first
support region arranged for at least one of (a) support and (b)
guidance for the winding wire, the sleeve including at least one
second region, arranged as a tab, deformable for force-locking
connection to the winding wire and providable for producing a
welded joint to the winding wire, the sleeve including at least one
third region for a welded joint to the stranded conductor of the
cable.
47. An electric motor, comprising: a brake including a brake coil
in an electromagnet, the brake coil including a spool including: at
least one bobbin including at least one channel; a winding wire; at
least one sleeve is electrically connected to the winding wire, the
sleeve electrically connected to an electrical line, the sleeve
including at least one deformable region, to produce the electrical
connection, a respectively deformable region is deformable to
provide a force-locking connection and weldability.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a spool, a brake and an
electric motor.
BACKGROUND INFORMATION
[0002] Certain bobbins for spools wound with winding wires are
conventional.
[0003] A brake coil having a center tap (FIG. 4, reference numeral
6) is described in German Published Patent Application No. 36 13
294, which is usable as a brake for an electric motor. It is a
disadvantage, in this case, that manufacturing it is effortful and
costly. It is important, in this context, that each additional
contact of the winding wire causes effort and costs during
manufacturing.
[0004] The connecting of wire is described in German Published
Patent Application No. 79 23 585, the winding wire of the spool
having to be wound around the pin-shaped end several times ("wind
around" page 4, 3.sup.rd paragraph, lines 4-5) and then soldered
on. This requires too much effort and is costly.
[0005] A hook on a connecting piece is described in German
Published Patent Application No. 34 07 758, which is provided to
guard against pulling out (E2, page 9, line 11). It is a
disadvantage, again, that connecting the winding wire requires much
effort and is complicated.
SUMMARY
[0006] Example embodiments of the present invention may provide a
spool so as to make it more cost-effective and simpler to
manufacture, especially including contacting. This also relates
particularly to spools having a plurality of taps, especially at
least one center tap.
[0007] The spool may include at least one bobbin and one winding
wire, e.g., a winding wire lacquered or enameled for electrical
insulation, the bobbin including at least one channel, e.g., one
developed as a pocket, at least one sleeve, bush or bushing being
electrically connected to the winding wire, the sleeve being
electrically connected to an electrical line, e.g., a stranded
conductor of a cable, the sleeve including deformable regions, for
producing the electrical connections, a respectively deformable
region being deformable such that a force-locking connection is
provided and welding is able to be carried out.
[0008] The sleeve may make possible a cost-effective type of
electrical connection. For example, the sleeve itself is able to be
produced as a cost-effective punched bent component made of sheet
metal. Since it has deformable regions, using these regions,
winding wire sections or stranded conductor sections are able to be
clamped, that is, able to be connected by force-locking. Welded
joints are then able to be produced by appropriate heating. Using
additional deformable regions, other parts of the cable are also
able to be clamped, which makes strain relief implementable for the
cable having the stranded conductor.
[0009] The sleeve may include at least one first support region
which is provided as support and/or guidance for the winding wire,
the sleeve including at least one second region, arranged as a tab,
which is deformable for the force-locking connection to the winding
wire and is providable for producing a welded joint to the winding
wire, the sleeve including at least one third region, e.g., a wall
part region, which is provided for a welded joint to the stranded
conductor of a cable.
[0010] The winding wire may be easy to thread in and then may lie
on the support surface, that is, it is able to be accurately
positioned. In this manner, the threading is able to be carried out
so well by the shaping of the sleeve that the winding wire is
introduced into the second region, that is, the region of the
deformable tab. The latter is deformable, that is, it is
particularly easily pressed against a wall part for clamping, that
is, the force-locking connection of the winding wire to the sleeve.
But then, the clamped winding wire is able to be quickly and simply
welded. The welded joint is well protected against stressing
forces, because the force-locking connection continues to be
effective, and thus unloads the welded joint.
[0011] Since the sleeve has an additional region for a welded joint
to the stranded conductor of the cable, at the sleeve itself, a
stable region is realized that is suitable for a welded joint, and
consequently no further additional parts are required for the
welded joint of the stranded conductor of the cable.
[0012] The sleeve may be a metallic punched bent component. For
example, the sleeve may be suitably provided for producing an
electrical connection between the winding wire and the electrical
line or a stranded conductor. This may provide that a conductive
metal and a metal that is especially suitable for producing a
welded joint may be selected, and which is also cost-effective and
is able to be manufactured by a punching and bending process.
[0013] The sleeve may be able to be fastened in the bobbin with
force-locking and/or form-locking. For example, the sleeve may
include at least one barb, especially for hooking into the channel.
This may provide that the fastening is able to be achieved simply
and cost-effectively.
[0014] The sleeve may include at least one first region, especially
a region developed as a tab, which is provided as a support and/or
guidance for the winding wire. This may provide that manufacturing
faults may be minimized, since the winding wire is able to be
positioned securely and reproducibly, with great accuracy.
[0015] The sleeve may include at least one second region,
especially a region designed as a tab, which is deformable for the
force-locking connection to the winding wire and is providable for
producing a welded joint to the winding wire. This may provide that
a good electrical connection is providable, simply and
cost-effectively.
[0016] The sleeve may include at least one third region, especially
a region designed as a tab, which is deformable for the
force-locking connection to a stranded connector, especially of a
cable, and is providable for producing a welded joint to the
stranded connector. This may provide that a good electrical
connection is providable, simply and cost-effectively.
[0017] The sleeve may include at least one fourth region,
especially a region designed as a tab, which is deformable for the
force-locking connection to a cable, e.g., to the insulation of the
cable, and is providable for producing a welded joint to the
stranded connector. This may provide that a strain relief is
providable, simply and cost-effectively.
[0018] The lacquering of the winding wire may be removable when
producing a welded joint at least in the vicinity of the electrical
contact area, e.g., because of the heating that occurs during the
production of the welded joint. This may provide that no special
stripping operating step is required, but just the welding may be
sufficient.
[0019] The regions may be connected at a wall part. This may
provide that the regions are able to be held together in a stable
manner, using the wall part.
[0020] The spool may include a center tap. This may provide for
being able to realize particularly rapidly switchable brakes.
[0021] The spool may include encapsulating material, e.g., in the
area of the channel and/or the winding. This may provide that
chemical and mechanical protection is achievable. Besides that, the
electrical insulating values are also able to be improved, in
response to a suitable choice of the encapsulating material.
[0022] The bobbin may include a holding device for winding wire
and/or cable. This may provide that the holding device is able to
be produced already at the injection molding production of the
bobbin, and thus no further operation may be required.
[0023] With regard to the brake, the brake coil may be arranged in
the manner of the above-named spool. Thus, a cost-effective brake
coil may be able to be implemented even having a center tap. Three
sleeves are required for the center tap, using which, stranded
connector at the beginning, in the middle and at the end of the
winding of the spool, that is executed using winding wire, is
tapped.
[0024] An electric motor may include a brake having a brake coil or
a spool as described above. This may provide that the electric
motor is able to be manufactured with low effort and costs, and a
high degree of automation may be able to be achieved in the
manufacturing.
LIST OF REFERENCE NUMERALS
[0025] 1 sleeve [0026] 2 bobbin [0027] 3 stranded conductor having
insulation [0028] 4 channel [0029] 5 winding wire [0030] 6 holding
device [0031] 7 holding device having an eyelet for cable [0032] 8
holding device [0033] 9 slot [0034] 10 corner [0035] 20 tab [0036]
21 barb [0037] 22 tab [0038] 23 wall part [0039] 24 tab [0040] 25
tab [0041] 101 sleeve [0042] 102 bobbin [0043] 103 cable, including
stranded connector and insulation [0044] 105 winding wire [0045]
108 holding device [0046] 120 wall part area [0047] 122 tab [0048]
123 wall part [0049] 124 tab [0050] 125 support surface for winding
wire
[0051] Example embodiments of the present invention are explained
in more detail below with reference to the appended Figures.
DETAILED DESCRIPTION
[0052] FIG. 1 illustrates a bobbin 2. It may be able to be made as
a plastic injection-molded part, and has a holding device 7 as
fastening for an outgoing cable.
[0053] FIG. 2 illustrates three sleeves 1, which are able to be
introduced into the bobbin at three places on the
circumference.
[0054] The construction of sleeves 1 are illustrated in FIGS. 12
and 13.
[0055] FIG. 3 illustrates a cable 3, including electrically
conductive stranded conductor and insulation, which is able to be
introduced into the lower part of sleeve 1, before the latter is
inserted into the bobbin.
[0056] FIG. 4 illustrates three cables 3, which are connected to
corresponding sleeves 1 before the latter are introduced into
bobbin 1.
[0057] FIG. 5 illustrates cable 3 connected to sleeve 1, FIG. 12
illustrating sleeve 1 by itself, without the cable, in an enlarged
version. The left bent part 25 is deformed such that the insulation
of sleeve 1 is fixed, and thus a strain relief is provided for the
right part of the cable. Right bent part 20 is connected to the
stranded conductor of cable 3 in an electrically conductive manner,
e.g., in welded form.
[0058] FIG. 6 illustrates bobbin 2, sleeves 1 connected to the
cables being introduced.
[0059] FIG. 7 illustrates channel 4, into which sleeves 1 are
pushed in, in a clearer manner. Channel 4 is arranged as a
pocket.
[0060] FIG. 8, just as FIG. 7, illustrates the pushed-in sleeves,
the cables being guided through the eyelet of holding device 7.
[0061] FIG. 9 illustrates a holding device 6 for fixing a first end
of a winding wire 5, which is guided over the sleeve and lies on
tabs 24 of sleeve 1, FIG. 12 illustrating sleeve 1 enlarged by
itself without cable.
[0062] FIG. 10 illustrates a winding wire 5 guided via sleeve
1.
[0063] FIG. 11 illustrates sleeve 1 in the state in which it is
pushed into the bobbin.
[0064] In FIG. 12, the sleeve is illustrated larger than in FIG.
13a. The sleeve is arranged as a punched bent component, and has a
wall part 23 from which a tab 22 is bent away.
[0065] Regions having barbs 21 and additional tabs 24 are arranged
to the right and left, and are also bent away. At the lower end of
wall part 23, there are arranged a right tab 20 and a left tab 25,
and again they are bent away.
[0066] FIG. 13b illustrates what the bending state is of tabs 20,
25 when a cable with its insulation is introduced coming from the
left, and the insulation is fixed using left tab 25. This fixing
has the effect of strain relief for the stripped, right end part of
the cable, that is, the bare stranded conductor. This stranded
conductor piece is pressed together using tab 20 and is then
electrically welded. This consequently creates a very good
conductive connection of the stranded conductor to the sleeve,
which bears large mechanical stresses because of the strain
relief.
[0067] FIG. 13c illustrates the bending state of tab 22, which
fixes the winding wire and to which the winding wire is welded.
[0068] By contrast to FIG. 13b, FIG. 13d illustrates the cable
introduction from the right, tab 20 being consequently less bent
for fixing the cable having insulation, and tab 25 being more
strongly bent for fixing the stranded conductor of the stripped end
piece of the cable.
[0069] FIGS. 14a and 14b illustrate bobbin 2 in different
orientations, channel 4 arranged as a pocket being illustrated, and
slot 9 for the introduction of the winding wire also being
illustrated. The winding wire is then wound, and at the end is
guided via a corner and sleeve 1 to holding device 6, as is
illustrated in FIG. 9.
[0070] Holding device 6 may also be omitted on the bobbin and
instead be provided on the tool.
[0071] The channel may be encapsulated at the end of the
manufacturing process using an encapsulating compound.
Consequently, one is able to achieve both mechanical and chemical
protection for the spool winding.
[0072] The spool is able to be provided, e.g., as a brake coil of
an electromagnetically operable brake. This brake may be used in,
and integrated into an electric motor.
[0073] A refinement is illustrated in FIGS. 15 to 27.
[0074] FIG. 15 illustrates sleeve 101 having wall part 123. Tabs
124 have positioning functions for the winding wire. Winding wire
105 is held between wall part 123 and tabs 124. In this context, it
lies upon support surfaces 125 for winding wire. In the process,
the winding wire is pressed by tab 122 against wall part 123, and
is there able to be welded, so as to produce the electrical
connection. This running of the wire is illustrated in FIGS. 26 and
27. Wall part areas 120 are provided for connecting to stripped
cable 103, including stranded conductor and insulation. The
stranded conductor wires are there able to be welded or soldered to
a wall part area 120, as is illustrated in more detail in FIG.
18.
[0075] FIG. 16 illustrates bobbin 102, into which up to three
sleeves 101 are able to be introduced.
[0076] FIG. 17 illustrates sleeve 101 before it is pushed into
bobbin 102. FIG. 18 illustrates the connection to a cable 103
having insulation, the stripped end regions of cable 103, being
welded.
[0077] FIG. 19 illustrates sleeve 101 pushed into bobbin 102, and
cable 103 laid into a channel. FIG. 20 illustrates an associated
different perspective. FIG. 21 illustrates the bobbin having two
sleeves 101 pushed in and one sleeve 101 before being pushed
in.
[0078] FIG. 22 illustrates winding wire 105, which is fastened to a
holding device 108, and which extends over support surfaces 125 of
the sleeve. Winding wire 105 is laid in, in between, into still
open tab 122. FIGS. 23 and 24 each illustrate another view.
[0079] FIG. 25 illustrates bobbin 102 having three sleeves 101
pushed in, tab 122 being pressed closed, that is, against wall part
123. In this manner, the winding wire may be easily welded. FIG. 26
illustrates an enlarged section of this. FIG. 27 illustrates
another perspective.
* * * * *